From 0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 03:47:29 +0200 Subject: Adding upstream version 115.8.0esr. Signed-off-by: Daniel Baumann --- js/src/vm/SavedStacks-inl.h | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 js/src/vm/SavedStacks-inl.h (limited to 'js/src/vm/SavedStacks-inl.h') diff --git a/js/src/vm/SavedStacks-inl.h b/js/src/vm/SavedStacks-inl.h new file mode 100644 index 0000000000..176d7e7272 --- /dev/null +++ b/js/src/vm/SavedStacks-inl.h @@ -0,0 +1,29 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- + * vim: set ts=8 sts=2 et sw=2 tw=80: + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef vm_SavedStacksInl_h +#define vm_SavedStacksInl_h + +#include "vm/SavedStacks.h" + +// Assert that if the given object is not null, it's Class is the +// SavedFrame::class_ or the given object is a cross-compartment or Xray wrapper +// around such an object. +// +// We allow wrappers here because the JSAPI functions for working with +// SavedFrame objects and the SavedFrame accessors themselves handle wrappers +// and use the original caller's compartment's principals to determine what +// level of data to present. Unwrapping and entering the referent's compartment +// would mess that up. See the module level documentation in +// `js/src/vm/SavedStacks.h` as well as the comments in `js/src/jsapi.h`. +inline void js::AssertObjectIsSavedFrameOrWrapper(JSContext* cx, + HandleObject stack) { + if (stack) { + MOZ_RELEASE_ASSERT(stack->canUnwrapAs()); + } +} + +#endif // vm_SavedStacksInl_h -- cgit v1.2.3